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I recommend keeping some charged spares and the charger in the same place.
Yeah, OP surely has a place they keep batteries so they don't make a trip to the store every time a remote dies.
Anyway, I'd recommend that charger be one that charges AA/AAA individually instead of requiring pairs. Mine is a Panasonic BQ-CC17 that came with a set of Eneloops.
That does raise another issue: some of the retail-grade chargers are pretty terrible and may have led some people to a bad impression of how rechargeable batteries perform.
A charger should charge cells individually, at a reasonably fast rate, and terminate correctly to prevent overcharging. Yours hits two points out of three: it's individual and correct, but slow.
But if I only need one every other year I'll have to charge the thing before I use it anyway. Besides should you not store rechargeable Li-batteries at 50-80%?
I had NiMH batteries in mind since we're talking about types that come in alkaline, and low-self-discharge NiMH batteries (e.g. white Eneloops) are generally fine to fully charge before storage.
You might end up with a bit shorter runtimes storing charged batteries for years than charging them right before use, but it doesn't matter much when your runtimes are measured in years.
There's one potential snag with certain low-power devices though: a few only work in the 1.3-1.5V range. That's terrible design since it doesn't use most of the power in an alkaline, but some of those won't work at all with NiMH.